CN102326195A

CN102326195A - Systems and methods for display device backlight compensation

Info

Publication number: CN102326195A
Application number: CN2010800084492A
Authority: CN
Inventors: D·奥德
Original assignee: Zoran Corp
Current assignee: Zoran Corp
Priority date: 2009-02-19
Filing date: 2010-02-03
Publication date: 2012-01-18
Also published as: US20100207865A1; WO2010096269A1; JP2012518206A

Abstract

Systems and methods of controlling illumination of a display device are disclosed which can detect a plurality of luminance values in a digital image of the display device that correspond to a plurality of pixel positions of the display device. A first plurality of luminance values of the plurality of luminance values can be mapped to a first pixel position of the plurality of pixel positions of the display device, and a compensation mask value for the first pixel position can be determined based upon the first plurality of luminance values. The compensation mask value can correspond to an adjustment of a luminance value of the first pixel position and en be provided to a display controller of the display device to permit the display controller to adjust a luminance value of the first pixel position to correspond more closely with luminance values associated with the other pixel positions.

Description

The system and method that is used for the display device BLC

The cross reference of related application

The application requires quote the following U.S. Provisional Application No. that is incorporated into this through integral body according to 35 U.S.C.119 (e): in submission on February 19th, 2009, title is the U.S. Provisional Application No.61/153 of " Backlight Compensation for Wedge Light Guide "; 902; With submit on February 27th, 2009, title is the U.S. Provisional Application No.61/155 of " Backlight Compensation for Light Guide Plate ", 996.

Technical field

At least one embodiment of the present invention relates generally to the illumination and the control of display device, and relates more specifically to be used for the indirect BLC of LCD.

Background technology

Electronic console (such as the monitor that is used for computing machine, televisor and other electronic equipment) distributes and can form the light that supplies the image that the people checks.The demonstration of image is based on the character of the light that distributes from electronic console or quantity and change.Because it is bigger complicated with more that electronic console becomes, thereby the light emitting source that is used to provide the light that distributes from these electronic consoles also becomes bigger complicated with more.The light emitting source that is used for electronic console is given from the televisor to the computer monitor and has been increased parts, cost and weight with these each electronic consoles of display that are used for other electronic equipment, thereby has increased electricity consumption and cost and reduced efficient to the consumer.In addition, the ever-increasing size that is used for some electronic consoles of various application also can influence size, cost and the efficient of light emitting source parts.

Summary of the invention

Aspect of the present invention and embodiment relate to the system and method for the illumination that is used for display device.Compensate mask can be applied to the parts of display device, such as the liquid crystal display light valve of LCD monitor.This compensate mask can be to inhomogeneous the compensating in propagating through the light of display device, and can be controlled between operation or operating period from the characteristic of the light of display device emission.

At least one aspect of the present invention relates to a kind of method that is used to control the illumination of display device.This method can detect a plurality of brightness values in the digital picture of display device, corresponding with a plurality of location of pixels of display device.More than first brightness value in a plurality of brightness values can be mapped to first location of pixels in a plurality of location of pixels of display device, and can confirm to be used for the compensate mask value of first location of pixels based on more than first brightness value.The compensate mask value can be corresponding to the adjusting of the brightness value of first location of pixels.The compensate mask value can be provided for the display controller of display device, with allow display controller regulates first location of pixels based on the compensate mask value brightness value with closer corresponding to a plurality of location of pixels of display device in the brightness value that is associated of other location of pixels.In one embodiment, this can accomplish to each location of pixels of display device.

Another aspect of the present invention relates to a kind of display manufacturing system.This display manufacturing system can comprise: sensor, be configured to detect a plurality of brightness values in the digital picture of display device, and wherein a plurality of brightness values in the digital picture are corresponding to a plurality of location of pixels of display device.System controller can be coupled to sensor to receive a plurality of brightness values in the digital picture.System controller can also be configured to: more than first brightness value in a plurality of brightness values is mapped to first location of pixels in a plurality of location of pixels of display device; And confirm to be used for the compensate mask value of first location of pixels based on more than first brightness value, wherein the compensate mask value is corresponding to the adjusting of the brightness value of first location of pixels.System controller also can be configured to display controller to display device afford redress mask value with the brightness value that allows display controller and regulate first location of pixels based on the compensate mask value with closer corresponding to a plurality of location of pixels of display device in the brightness value that is associated of other location of pixels.

Another aspect of the present invention relates to a kind of liquid crystal display.This liquid crystal display can comprise: light source; The marginal point light is led, and is coupled to light source optically; And the liquid crystal display light valve, be coupled to the marginal point light optically and lead.Liquid crystal display also can comprise the display device controller that is electrically coupled to the liquid crystal display light valve.Display device controller can provide a plurality of pixel data signals to each location of pixels in corresponding a plurality of location of pixels of liquid crystal display light valve.Display device controller also can receive the corresponding compensate mask value of first location of pixels in a plurality of location of pixels with the liquid crystal display light valve, thereby and the brightness value that can make the location of pixels of winning based on the value that the compensate mask value is regulated first pixel data signal corresponding with first location of pixels closer corresponding to the brightness value of other location of pixels in a plurality of location of pixels of display device.

Another aspect of the present invention relates to a kind of computer-readable medium that is stored thereon with instruction sequence.Instruction makes processor detect a plurality of brightness values in the digital picture of display device, and a plurality of brightness values in the digital picture are corresponding to a plurality of location of pixels of display device.Instruction also makes processor more than first brightness value in a plurality of brightness values is mapped to first location of pixels in a plurality of location of pixels of display device; And confirm to be used for the compensate mask value of first location of pixels based on more than first brightness value, this compensate mask value is corresponding to the adjusting of the brightness value of first location of pixels.Instruction also make processor to the display controller of display device afford redress mask value with the brightness value that allows display controller and regulate first location of pixels with closer corresponding to a plurality of location of pixels of display device in the brightness value that is associated of other location of pixels.

Another aspect of the present invention relates to a kind of computer-readable medium that instruction sequence is stored thereon that has.Instruction generates processor to be used for a plurality of pixel data signals of each location of pixels of a plurality of location of pixels of the light valve of liquid crystal display, and reception and at least one corresponding compensate mask value of at least one location of pixels in a plurality of location of pixels.Thereby the brightness value that the value that instruction also makes processor revise the pixel data signal corresponding with at least one location of pixels of display device makes the location of pixels of winning is the brightness value of other location of pixels in a plurality of location of pixels of corresponding display device closer.

In various embodiments, detecting brightness value can comprise: the liquid crystal display light valve of display is disposed to the precalculated position; Display device is exposed to the maximal illumination value; And the digital picture of after configuration and irradiation action, obtaining display device.In one embodiment, confirm that the compensate mask value comprises the anti-number of the brightness value of confirming first location of pixels and uses anti-numerical value as the compensate mask value that is used for first pixel.

Confirm that the compensate mask value also can comprise: identify first location of pixels in a plurality of location of pixels; Identify second location of pixels in a plurality of location of pixels; And relatively come to confirm the compensate mask value based on the brightness value of the brightness value of first location of pixels and second location of pixels.

In certain embodiments, display device comprises that light source, liquid crystal display light valve and marginal point light lead, and can lead guiding the liquid crystal display light valve into from the light of light source with the marginal point light.Also can be during making display device; Detect a plurality of brightness values in the original place after being assembled in the display device in that liquid crystal display light valve, light source and marginal point light are led, and can be during the manufacturing of display device in the original place to the display controller mask value that affords redress.

In one embodiment, can confirm a plurality of compensate mask values, each compensate mask value is corresponding at least one location of pixels in a plurality of location of pixels.Can be at least part generate compensate mask based on a plurality of compensate mask values and to the display controller mask that affords redress.Also can be during the manufacturing of display device in the original place to the display controller mask that affords redress, wherein display device comprises liquid crystal display light valve, light source and photoconduction.。

In one embodiment, can differ the part at least of regulating compensate mask more than with respect to the expectation quantity of range of tolerable variance the time in the part of confirming compensate mask and other compensate mask value.Also can when definite compensate mask value is beyond range of tolerable variance, regulate compensate mask, and can compensate mask be applied to display device reduces at least one pixel of display device with the operating period at display device brightness value.

At least one aspect of the present invention relates to a kind of method that is used to control the illumination of display device.This method can comprise a plurality of brightness values of detection, and a plurality of brightness values are associated with a plurality of location of pixels of display device.This method also can comprise based at least one brightness value in a plurality of brightness values confirms the compensate mask value, and wherein the compensate mask value is corresponding at least one location of pixels in a plurality of location of pixels.In addition, this method can afford redress mask value to the display controller of display device to be adjusted in the illumination of a pixel position in a plurality of location of pixels.

Another aspect of the present invention relates to a kind of display illumination system.This display illumination system can comprise the sensor that is used to detect a plurality of brightness values that are associated with a plurality of location of pixels of display device.System controller can be confirmed the compensate mask value based at least one brightness value in a plurality of brightness values, and this compensate mask value is corresponding at least one location of pixels in a plurality of location of pixels.The system controller mask value that also can afford redress to the memory cell of display device, this memory cell is associated with display device controller.

In various embodiments, display device controller can be positioned open position with the light valve of display device, and can shine the photoconduction of display device.Digital imaging apparatus can generate the digital picture of the display of display device; Wherein a plurality of brightness values comprise the brightness value of a plurality of pixels of digital picture; And system controller can be mapped at least one brightness value in a plurality of brightness values at least one location of pixels in a plurality of location of pixels of display device, and wherein the ratio of the pixel in a plurality of pixels in the digital picture and the display device is at least four to one.

The others of these illustrative aspects and embodiment, embodiment and advantage will from hereinafter specific descriptions that only accompanying drawing through the example diagram principle of the invention combines to carry out become clear.Aforementioned information and hereinafter specifically describe and comprise the illustrative example of various aspects and embodiment, and are intended to be provided for understanding aspect and the character of embodiment and the summary or the framework of characteristic of requirement protection.Accompanying drawing is used to describe and explain aspect and the embodiment that requires protection with the remainder of instructions.

Description of drawings

Accompanying drawing also may not be drawn in proportion.In the accompanying drawings, each the identical or approaching identical parts that shows at each picture in picture are represented by similar label.For the sake of brevity, maybe be in every width of cloth figure and non-marked each parts.In the accompanying drawings:

Fig. 1 is the exploded view of describing according to the electronic console of an embodiment;

Fig. 2 is the block scheme of describing according to the display manufacturing system of an embodiment;

Fig. 3 is the process flow diagram of describing according to the display illumination control method of an embodiment; And

Fig. 4 is the process flow diagram of describing according to the illumination control method of the display of an embodiment.

Embodiment

System and method described herein is not limited in instructions, set forth perhaps the structure and the arrangement details of illustrated parts in the accompanying drawings in their application.The present invention can have other embodiment and implement in various manners or realize.In addition, word used herein and term are in order to describe and should not to be regarded as restrictive.Here use " comprising ", " comprising ", " having ", " containing ", " relating to " and variant thereof to be intended to contain project and equivalent project and the addition item of enumerating subsequently.

Various aspects and embodiment relate to electronic console illumination control, calibration and compensation.As hereinafter is further discussed, can pass the parts of photoconduction and display device from the light of light source, such as polarizer, brilliance control film, brightness enhancement film, light valve and face glass.This light that passes these parts can distribute and can supply the person of checking from display device.The photodistributed homogeneity that the difference of individual component can disturbance be finally seen by the person of checking, thus picture quality reduced.For example, the individual difference in the photoconduction can cause uneven brightness through the light of electronic equipment part to distribute and finally cause the uneven brightness of the light that distributes from each indivedual electronic console to distribute.These differences maybe be for example because scrambling, inconsistency or the deviation of introducing at the manufacturing or the assembly process of display device or its ingredient and be distinctive to concrete display device.

Sensor can for example be identified at any of electronic equipment part or the light characteristic at multiple spot place through the digital picture of analyzing irradiated display device, and the information that system controller can be handled institute's sensing is to generate the compensate mask value that the unevenness of brightness value between the various parts of display device compensated.Can be for example during making display device to the display device controller of display device or the memory cell mask value that affords redress.When the compensate mask value for example is applied to the location of pixels of liquid crystal display light valve; The illumination of at least one location of pixels that can be through regulating light valve comes photodistributed unevenness is compensated, thus make during operation light with basically evenly mode distribute from display device.

Fig. 1 describes the exploded view that is used to appear the display device 100 of visual information according to an embodiment of the invention.The example of display device 100 comprises monitor and the screen that is used for various device (such as computing machine, televisor, personal digital assistant, mobile phone, game station and other electronic console).In one embodiment, display device 100 comprises LCD monitor or other electronics modulated optical equipment that forms televisor, computing machine or other display device part.

In one embodiment, display device 100 comprises and has the diagonal angle surface measurement and be at least 30 inches LCD monitor.Being understood that, is possible greater than 30 inches with being less than 30 inches the two other surface measurements.In one embodiment, display device 100 comprises the lcd television set with slim design.For example, the liquid crystal display television monitor that comprises display device 100 can have 0.39 inch or the degree of depth still less.In one embodiment, photoconduction 110 has and is less than 0.06 inch the degree of depth, and display device 100 has about 52 inches diagonal angle surface measurement.In one embodiment, light source 105 can be in an edge of display device 100 in indirect configuration backlight (lighting configuration such as the edge).This reduce the weight, gross thickness of light source 105 and the number of the lamp that is associated with the light source 105 that is used for shining display device 100 the two.

Display device 100 comprises at least one light source 105.Light source 105 can comprise one or more fluorescent light, one or more light emitting diode (such as white light-emitting diode, RGB (RGB) light emitting diode, organic, the quantum dot array based on phosphor) or other electron light source.(not shown in Fig. 1) in one embodiment, light source 105 can shine display device 100 with the person of checking with respect to the light that distributes from display device 100 from behind in the direct backlight configuration.

As shown in fig. 1, light source 105 is comprising a string light emitting diode in (for example, sidepiece or edge) configuration backlight indirectly, and wherein light distributes to display device 100 from light source 105 via at least one photoconduction 110.For example, photoconduction 110 can be that the marginal point light is led.Photoconduction 110 can via the total internal reflection characteristic of photoconduction 110 and with respect to the position of light source 105 to display device element arrays distribute light.Photoconduction 110 can have different shape and form.For example, photoconduction 110 can have wedge shape as shown in fig. 1.In various embodiments, photoconduction 110 can have tubular, rectangle, v groove, triangle, bar shaped or the configuration of rib shape.In one embodiment, photoconduction 110 is the planar-light guide with micro lens surface structure.Photoconduction 110 can be coupled to light source 105, and the surface of photoconduction 110 makes the light maximization and the linearization of on the surface of display device 100, exporting generally.

In one embodiment, in given range of tolerable variance, make photoconduction 110.For example, photoconduction 110 as wedge shaped light guide maybe be in the following areas be different from another wedge shaped light guide: the shape of inside surface, profile or angle aspect, wherein light reflects on this inside surface between through display device 100 propagation periods.In addition, photoconduction 110 possibly processed and possibly during being installed to display device 100, is out of shape by plastics or other flexible material.For example, at the assembly process of display device 100, photoconduction 110 maybe be by the framework of durable attachment to display device 100.At this assembly process, indivedual photoconductions 110 possibly be out of shape, thereby this reflection characteristic that possibly change photoconduction 110 reduces the photodistributed homogeneity of distributing from photoconduction 110.

Photodistributed homogeneity reduces and possibly during the various steps (such as photoconduction 110 and light source 105 are assembled in the display device 100) of manufacturing or packaging technology, occur.For example, these possibly change the illumination characteristic of display device 100 with the assembling of other display device 100 parts, thereby cause the uneven light that changes along with distortion or misalignment quantity to distribute.For example in batch manufacturing environment (such as assembly line, produce or the non-experimental situation of non-test), these changes maybe be specific to indivedual display device 100, thereby make not to be all identical as far as all display devices 100 of same design (for example model).Since between the display device 100 of each assembling (for example in the fabrication tolerance scope) difference and produced specific light distribution property from a display device 100 with respect to another.

Light via photoconduction 110 100 propagation from light source 105 towards display device passes a string display unit at least in part.For example, display device 100 can comprise the LCD (LCD) with a plurality of parts.With reference to Fig. 1; In one embodiment; Light is propagated through display device 100 from light source 105 via photoconduction 110; This display device 110 can comprise at least one brilliance control film 115, at least one first polarizer 120, at least one light valve 125, at least one second polarizer 130, at least one brightness strengthens controlling diaphragm 135 and at least one face glass 140, and in which during operation this light finally is regarded as image 145.In one embodiment, these parts form the part at least of LCD monitor jointly.These parts can stop, part stops, polarize, rotate or transmit the variable light of quantity.Other configuration is possible.For example, display device 100 can comprise much more more or still less polarizer, additional wave filter and more or still less film and brilliance control.

Be understood that brilliance control film 115 can reduce some unevenness intensity or illumination characteristics.Yet the normally following passive element of brilliance control film 115 though this element is designed to concrete electronic console model or type, does not further customize to indivedual electronic consoles.Therefore, brilliance control film 115 possibly not considered to be incorporated into the unevenness characteristic in indivedual display devices 100 at the manufacturing or the assembly process (for example during being installed to photoconduction 110 in the display device 100) of indivedual display devices 100.

In one embodiment, display device 100 parts illuminating light valves 125.Light valve 125 can be the liquid crystal display light valve with a plurality of individually addressable pixels, and liquid crystal material is being aimed between the transparency electrode and between first polarizer 120 and second polarizer 130.Light valve 125 also can be MEMS (MEMS) device.In one embodiment, photoconduction 110 comprises the marginal point light of guiding light valve 125 from light source 105 into is led.Brightness (for example, illumination or the intensity) characteristic that according to an aspect of the present invention, can constitute the pixel of light valve 125 modulate with to from the backlight intensity of light source 105 for example since make or defective mounting due to variation compensate.For example, producing intensity even or light valve 125 pixels of even (for example, in the homogeneity scope) characteristic basically can be to proofread and correct perhaps offset sum because the intensity due to the image adds.This offset for example can be produced as the part of drive signal or with the pixel that drive signal is applied to light valve 125 have evenly or the image of uniform luminance characteristic basically, and can to the photoconduction 110 that influence illumination and maybe be introduce at the manufacturing or the assembly process of display device 100 perhaps the defective of other parts compensate.

Fig. 2 is a block scheme of describing display manufacturing system 200 according to an embodiment of the invention.In one embodiment and see figures.1.and.2, the illumination with control display device 100 is operated by system 200 in production line or assembly line environment.For example, system 200 can dispose display device 100, so that the even property of uneven illumination due to the distortion during photoconduction 110 is in being installed to display device 100 is compensated.This possibly perhaps assemble in the environment in batches in production and take place in the original place.System 200 also can be in nonproductive environment indivedual tests or human configuration during the illumination of control display device 100.

In one embodiment, system 200 comprises at least one sensor 205.Sensor 205 can form the part of at least one digital camera 210, the part of at least one system controller 215 can be an autonomous device perhaps.In one embodiment, digital camera 210 is caught the digital picture of display device output.For example, can shine display device 100 with establishment image 145, and digital camera 210 obtains the digital picture of image 145.In one embodiment, when descending irradiation display device 100, digital camera 210 generates the digital picture of images 145 in maximum horizontal (and light valve 125 is in predetermined opaque level (such as fully open position)) when using light source 105.In this example, image 145 is the white screens that show the irradiation of the maximum illumination that comes from light source 105, and digital camera 210 generates the digital picture (this digital picture is an image 145) of this white screen.The different piece of image 145 can have different and uneven luminosity class (for example when shining as white screen), and in these unevenness some can owing to light source 105, photoconduction 110 perhaps other parts be installed in the display device 100.Replace, can under the opaque position of non-maximum, (and light valve 125 is in non-fully open position) shine display device 100.Here, image 145 is the white screens than the irradiation under the maximum horizontal that is used for this display device 100 level still less.

Digital camera 210 can be caught the digital picture of image 145 under the situation of display device 100 (for example, in the original place) of not drifting out from production during producing display device 100.Sensor 205 also can detect the brightness value of this digital picture in the original place, thereby makes and needn't remove display device 100 to be used for artificial or indivedual tests from the batch manufacturing environment.Be understood that; In other embodiments sensor 205 can be in non-batch assembling environment detect display device 100 via digital picture brightness of image (for example; Brightness value), in non-batch assembling environment, remove display device 100 and it is carried out indivedual or manual testing from assembly line or mass production environment.

Digital camera 210 can comprise any equipment that generates digital picture with any form (such as JPEG or RAW form).It is to be suitable for that the consumer sells and the digital camera of portable, complete, the independent unit that uses and can be as the part of production line or packaging technology and be suitable for the digital imaging apparatus that the assembling at display device 100, various stages of making or producing generate display device 100 digital pictures that digital camera 210 need not.

In one embodiment, the configuration of light source 105 and photoconduction 110 provides the light that shines display device 100 and formed images by digital camera 210.For example, system controller 215 can guide at least one display device controller 220 activating light source 105 with irradiation display device 100.System controller 215 can guide light source 105 to be switched to the illumination of its maximum horizontal (and light valve 125 is disposed at fully open position) with maximization display device 100.Light source 105 also can be switched to and be less than maximum horizontal and light valve 125 and can be disposed at and partially open the position.In another embodiment, at least one display device controller 220 of operation display device 100, major control display device 100 can be guided during producing display device, to activate the light source 105 of display device by system controller 215.In this exemplary embodiment, display device controller 220 can activate display device 100 during manufacture so that generate the demonstration of being taken by digital camera 210.

Be understood that image 145 is images (for example, this is the screen of irradiation) of when watching display device 100 attentively, seeing, or the monitor of when watching the glass screen 140 of display device 100 attentively, seeing.Digital camera 210 is caught the digital picture of the display device of irradiation.

In one embodiment, sensor 205 detects a plurality of brightness values in the digital picture that is generated by digital camera 210.For example, sensor 205 can detect the brightness value of digital picture in the original place during the manufacturing of display device 100 and after being installed to light valve 125, light source 105 and photoconduction 110 in the display device 100.Brightness value in the digital picture that is generated by digital camera 210 can be corresponding to the location of pixels in the display device 100.This correspondence can but to need not be 1: 1 correspondence, but from discuss more fully former of hereinafter thereby be preferably more than 1: 1.For example, display device 100 can comprise 2 megapixel displays, and digital camera 210 can be 12,000,000 pixel digital cameras.In this example, the digital picture that is generated by digital camera 210 is 12,000,000 pixel images of 2 megapixel displays of display device 100.Then, 6 pixels that have the digital picture that generates by digital camera 210 in this example to each location of pixels (for example, the pixel of light valve 125) of display device 100.In other words, the ratio 6: 1 that has Pixel of Digital Image and the pixel of corresponding display device 100.Therefore, in this example, sensor 205 detects 6 brightness values in the digital picture, corresponding with each pixel of display device 100.Other ratio (for example, 2: 1,4: 1, greater than 6: 1 with other ratio) to comprise non-integer ratio be possible.

Sensor 205 can detect in the digital picture, with all location of pixels of display device 100 or the corresponding brightness value of its subclass.For example; Sensor 205 can detect with the half the of the location of pixels of display device 100 or 1/3rd, or in edge, center or other zone of display device 100 (for example, top centermost, a left side inferior) locate or near it the corresponding brightness value of location of pixels.In one embodiment, sensor 205 detects at least one brightness value in the digital picture, corresponding with at least one location of pixels of display device 100.In one embodiment, sensor 205 detects the brightness value in the digital picture after light source 105 and photoconduction 110 have been assembled in the display device 100.In other embodiments, can detect other value, such as colourity, tone, saturation degree or luminance index.

The brightness value of the different piece of the digital picture that is detected by sensor 205 can be different.For example, the damage of photoconduction 110 (perhaps other parts of display device 100) during being installed to display device 100 possibly cause the inhomogeneous light through display device 100 to distribute.In this example, can be different at the different pixels or the regional brightness value of digital picture.In other words, the luminosity of the part of display device 100 or intensity maybe be greater than (perhaps being less than) luminosity or the intensity at another part place of display device 100.In one embodiment, this heterogeneity possibly appear in the digital picture of display device 100, and with the form of the non-homogeneous brightness value combine detection by sensor 205/ system controller 215.

In one embodiment, system controller 215 is handled and is mapped at least one location of pixels by the brightness value of sensor 205 sensings and with at least one brightness value.For example, sensor 205 detects a plurality of brightness values of digital picture, and system controller 215 is confirmed the brightness value of which location of pixels of display device 100 corresponding to institute's sensing.This for example can comprise at least one turning or the edge of the irradiation image that identifies display device 100, with the corresponding turning of corresponding digital picture or edge aligned and continue for example to use affined transformation be identified in all the other correspondence positions between display device 100 and the digital picture some or all.As before mentioning, the resolution of sensor 205 (for example, 12,000,000 pixels) can be greater than the resolution (for example, 2,000,000 pixels) of display device 100, thereby make a plurality of pixels in the digital picture corresponding to the single location of pixels of display.This over-sampling is (for example according at least 2: 1 ratio) allow to identify uniquely each location of pixels on the display based on digital picture.Be understood that,, then still can utilize sufficient digital processing to identify the approximate pixel position on the display based on digital picture if the resolution of sensor 205 is less than the resolution of display device 100.

In one embodiment, system controller is mapped to location of pixels through the brightness value corresponding with each location of pixels being asked average and average brightness value being mapped to the respective pixel position with the brightness value of digital picture.For example, 6: 1 examples about preceding text are discussed can for example use two-dimensional digital filter to come the brightness value of six pixels is asked on average, and average brightness value can be mapped to the respective pixel position of (for example being associated with) display device 100.System controller 215 need not the brightness value that is used to be mapped to location of pixels is asked average.For example when between the pixel of the pixel of digital picture and display device 100, having 1: 1 ratio, it on average can be unnecessary asking, and this is because of having digital picture, a detected brightness value corresponding with each pixel of display device in this example.In one embodiment, can use weighted mean value or average, perhaps can be based on contiguous with other, adjacent or regulate and a brightness value that location of pixels is corresponding away from the corresponding brightness value of location of pixels.

In one embodiment, system controller 215 is associated at least one brightness value with at least one location of pixels of display device 100.Brightness value can be to be unit or can be assigned with the no units in the scope with the candela on every square metre.For example, system controller 215 can be based on shining upon (for example distributing) at the brightness value between 0 and 1 at least one location of pixels by sensor 205 detected at least one brightness value.Can use other scope, for example 0 to 255.Display device 100 can comprise 6 to 10 or bigger position system substantially.For example, in 8 systems, the drive signal scope that is used for red, green and blue subpixels can be 0 to 255 (perhaps 1 to 256).In this example, the drive signal that is used for each component of red, green and blue subpixels component is the number in this scope, is used for that redness, 220 is used for green and 211 is used for blueness such as 232.Continue this example, each the compensate mask value that is used for these sub-pixel component can be regulated these values of drive signal.These are regulated, and red, green and blue component can be even for each.For example, the compensate mask value that is used for each component of these three components can reduce 2 with these values, and this reduces their illumination during operation.Therefore, in display device operating period with compensate mask value-2 as the certain applications of drive signal during in the respective pixel position, obtain to be used for red 230, be used for green 218 and be used for 209 blue these values.These numbers are example, and can use other number and scale range.Be understood that the compensate mask value need not for all sub-pixel component of pixel or for all pixels all identical (for example ,-2) of location of pixels.For example, the compensate mask value can be 0 for redness, be-1 for-1 for blueness for green, or 0 to 255 or other scale in any other number.Be understood that, these adjustings of sub-pixel component value are regulated the light level through the voltage on the row driver that changes light valve 125 (this produces the electric charge on the capacitor board in light valve 125).Reversing of capacitive plates control LCD molecule, this domination is from the light quantity of light source 105 through display device 100 transmissions.

Be understood that, the location of pixels of display device 100 can comprise display device 100 more than a pixel.For example; The location of pixels of display device 100 can comprise block of pixels, sub-pixel component, in the pixel at the edge of display device 100 or the pixel in the identified areas (for example, beyond turning, center, the center or other position that can identify) at display device 100.Specific brightness value can still need not to be identified or be mapped to individual pixel.For example; Digital picture, with the pixel of the brightness value that is not identified at digital picture more than the corresponding a plurality of brightness values of pixel can be mapped to the single location of pixels (for example, the zone of display device 100) that comprises more than a pixel of digital picture and the single location of pixels that constitutes display device 100 between indivedual corresponding.In certain embodiments, a plurality of brightness values can be mapped to one of display device 100, more than one, be less than one, non-all or all pixel pixel position corresponding.

In one embodiment, system controller 215 confirms to be used for the compensate mask value of at least one location of pixels of display device 100.The compensate mask value can be through regulating light valve 125 or other display device 100 parts the characteristic of at least one pixel come the inhomogeneous illumination characteristic of display device 100 is compensated.For example, system controller 215 can be mapped to a plurality of location of pixels with a series of brightness values of from 0 to 1.The difference of these mapping value can show that the luminosity of location of pixels lacks inhomogeneity degree.In one embodiment, the compensate mask value comprises the correction factor of considering this homogeneity shortage through the illumination characteristic of regulating display device 100 pixels.For example, the compensate mask value can be regulated corresponding to the illumination of at least one location of pixels.In one embodiment, when display device 100 comprised 2 megapixel displays, a plurality of compensate mask values for example can form 1920x1080 pixel compensation mask jointly.

In one embodiment, the compensate mask value of location of pixels is the anti-number that is mapped to the brightness value of this location of pixels.For example, system controller 215 is mapped to location of pixels with brightness value, and this brightness value is based on a plurality of brightness values by sensor 205 detected digital pictures.The brightness value that is mapped to location of pixels can be the number between 0 and 1, for example 0.8.Continue this example, the compensate mask value that is used for this location of pixels can be the anti-numerical value of 0.8 on the 0-1 scale, promptly 0.2.In one embodiment, the lower limit of compensate mask value can be arranged to required black level (for example, 0), and the upper limit is configured to required white level (for example, 1).In one embodiment, can confirm different compensate mask values to the different pixels position of display device 100 based on the brightness value of those location of pixels.The compensate mask value can individually be confirmed each location of pixels of the display device that is applied to the compensate mask value.This can be all location of pixels of display device 100 or the subclass of location of pixels.There is the alternate manner that wherein can generate the compensate mask value.For example, the compensate mask value can be based on average or the weighted mean value or the direct mean value of the brightness value corresponding with a plurality of location of pixels.

In one embodiment; Indivedual compensate mask values have for example been regulated the pixel characteristic of the pixel of each location of pixels as certain applications each location of pixels in a plurality of location of pixels of display device 100 of drive signal, had basically the evenly light of luminosity thereby make each location of pixels provide.For example; The pixel that the compensate mask value can compare low-intensity (not too bright or darker) reduces the luminosity of the pixel of higher-strength (bright or brighter) more, thereby makes each location of pixels with compensate mask value that bright value and the light substantially the same than the bright value of dark pixel position are provided.Other distortion is possible.For example, the compensate mask value can increase luminosity.In one embodiment, when brightness value each other 10% in the time, the location of pixels with compensate mask value is propagated has basically the light of luminosity uniformly.Other scope is possible, the mark such as 1%, 1%, is less than 5% and greater than 5%.

In one embodiment, the compensate mask value is big more, and the illumination characteristic of respective pixel position will be conditioned manyly more.For example, can smaller compensate mask value reduce the luminosity of its respective pixel position more in the operating period of display device 100 than the large compensation mask value.Continue this example; Can be applied as 0 or near compensate mask value 0 or do not use the compensate mask value fully to the location of pixels with minimum luminosity of light valve 125, and can to the brighter or bright corresponding location of pixels application examples of location of pixels as in 0 to 1 scope example of preceding text discussion than the large compensation mask value.These higher compensate mask values can dim the brightness value of bright pixel position in this example, thereby cause and the more approaching more uniform illumination of brightness value corresponding to dark or dark pixel position.Be understood that more the dark pixel position is still enough bright when operating, for the person of checking suitable demonstration to be provided for these.In this example, the compensate mask value reduces luminosity generally.In other example, the compensate mask value can increase the luminosity (for example the illumination with the increase of exporting from light source 105 combines) of respective pixel position.

In one embodiment, can use identical or substantially the same compensate mask value uniformly to all location of pixels.For example, if the brightness value corresponding with the location of pixels of display device 100 for example is confirmed as the light that produces owing to light source 105 to be contained more than the number of thresholds+level of 3% blueness, and then the compensate mask value can comprise-3% blue biasing.In this example, can use more compensate mask value, perhaps can individually regulate this even compensate mask value to consider the even property of uneven illumination between the different pixels position of display device 100.

In one embodiment; Digital camera 210 can be carried out to picture to red, green and blue (RGB) sub-pixel component; And sensor 205 can detect the luminance component that is used for each sub-pixel component, thereby produces three compensate mask (each red, the green and blue subpixels component that is used for each pixel separately).For example; If light source 105 comprises the RGB light emitting diode; Then compensate mask can be considered the colour inhomogeneous of any light emitting diode sub-pixel component, thereby avoids before display device 100 assembling abandoning using owing to brightness or unevenness the step of light emitting diode.

In one embodiment, system controller 215 mask value that can afford redress at least one display controller 220 of display device 100.For example at the production period of display device 100; System controller (not being the part of display device in one embodiment) can confirm to be used for display device 100 location of pixels the compensate mask value and to display device controller 100 this information is provided, wherein this information can be stored at least one memory cell 225.In this example, in the final use operating period of display device 100, display device controller 220 can be applied to the illumination characteristic of light valve 125 with the pixel of adjusting light valve 125 with the compensate mask value.To the adjusting of these illumination characteristics can to for example since the inhomogeneous differences of illumination intensities due to the distortion that possibly occur of photoconduction 110 or other parts at the production period of this particular display device 100 compensate.Being applied to each location of pixels that the different compensate mask values of different pixels position are applied to for the compensate mask value provides the adjusting of customization.Therefore, the brightness value of the location of pixels that has been applied to of compensate mask value is closer corresponding each other.

In one embodiment, thereby system controller 215 at least one compensate mask value of adjusting generate at least one compensate mask value through regulating, and to display device controller 220 at least one compensate mask value through regulating are provided.For example, system controller 215 can confirm that the part of compensate mask value and other compensate mask value differ more than the predetermined or anticipated number with respect to range of tolerable variance.This can be for example introduces the lens of error owing to digital camera 210 to the sensing brightness value of digital picture.In this example, system controller 215 can be regulated the compensate mask value so that they are brought in the range of tolerable variance.

In one embodiment, a plurality of location of pixels of system controller 215 sign, and at least in part based on the compensate mask value of relatively confirming to be used for these location of pixels of the brightness value that is associated with a plurality of location of pixels.The compensate mask value of first location of pixels can be confirmed or adjusting based on compensate mask value adjacent or second location of pixels at a distance.For example; If the compensate mask value of adjacent pixel location is obviously different each other (for example; Differ more than threshold quantity), then system controller 215 can confirm that this difference possibly caused (such as the interference in the playing up of digital picture) by the defective the luminosity defective of introducing except assembling.In this example, it is level and smooth with this difference with the correction factor that for example will on its respective pixel position, have through one of minimizing compensate mask value that system controller 215 can be regulated at least one compensate mask value.

In one embodiment; System controller 215 is being produced the production period of display device (during for example making display device in the original place); After light valve 125, light source 105 and photoconduction 110 being assembled in the display device 100, at least one compensate mask value is provided to display device 100 (for example, display device controller 220 or memory cell 225).

Display device controller 220 is electrically coupled to light valve 125 in one embodiment, and is configured to pixel data signal is provided and for example receive corresponding compensate mask value from system controller 215 to the location of pixels of light valve 125.Display device controller 220 also can be regulated the value of the pixel data signal corresponding with location of pixels, thereby makes the brightness value closer corresponding (for example, in range of tolerable variance) each other of those location of pixels.In one embodiment, the form with compensate mask during display device controller 220 is made in the production line of display device 100 receives the compensate mask value.The compensate mask value allows the brightness value of display device controller 220 at display device 100 operating periods adjusting location of pixels.

In one embodiment, the compensate mask value is formed for the compensate mask of the customization of concrete light source 105/ photoconduction 110 assemblies in the concrete display device 100.For example, another light source 105/ photoconduction 110 assemblies of another display device 100 can have different illumination characteristics, thereby produce different compensate mask.The compensate mask of customization can consider on the basis of unit one by one that inhomogeneous light distributes, and uses the illuminance uniformity characteristic of indivedual display devices 100 of the parts of some large-scale production at least thereby improve.

Fig. 3 is a process flow diagram of describing the illumination control method 300 of display.In one embodiment, method 300 comprises the action (action 305) of confirming brightness value.For example, detect brightness value (action 305) and can comprise a plurality of brightness values in the digital picture that detects display device, wherein a plurality of brightness values in the digital picture are corresponding at least one location of pixels of display device.In one embodiment, can detect (action 305) brightness value at a plurality of points of electronic equipment (like LCD monitor).Except detecting brightness value (action 305), method 300 also can detect colourity, tone, saturation degree or other brightness value.In one embodiment, detection brightness value (action 305) is included in the display quilt detects the digital picture of being obtained of the display of exporting via equipment (like digital camera) when part is shone at least brightness value.

Can detect the brightness value of (action 305) LCD monitor or other display device at the assembly process of display device (like televisor or computing machine).In one embodiment, detect the assembly process that brightness value (action 305) is included in equipment or its parts (such as the monitor or the LCD that are assembled in televisor or the computing machine) and detect brightness value in the original place.For example, can detect (action 305) brightness value on line in manufacturing or assembly process and not remove electronic equipment from assembly line or packaging technology.Also can during display device is made in the original place, liquid crystal display light valve, light source and photoconduction be assembled into detection afterwards (action 305) brightness value corresponding with each point of for example display device in display device.

In one embodiment, can detect more than first brightness value (action 305) afterwards with detect the identical pixel position of more than first brightness value (action 305) and detecting more than second brightness value (action 305).Also can detect more than second brightness value (action 305) in the different pixels position or at the one group of location of pixels that partly comprises the pixel position that detects more than first brightness value (action 305).In one embodiment, detect that more than second brightness value (action 305) is included in the pixel position identical with detecting first brightness value and additional pixel position detects second brightness value.

Method 300 also can comprise the action (action 310) that at least one brightness value is mapped at least one location of pixels of display device.For example, digital picture, with the corresponding detected brightness value of location of pixels of display device (action 305) can be by mapping (action 310) to this correspondence position.In one embodiment, brightness value being mapped to location of pixels (action 310) comprises more than first brightness value is mapped to first location of pixels and more than second brightness value is mapped to second location of pixels.

For example, the digital picture of the display device of irradiation can have the resolution higher than display device, thereby makes a plurality of (for example, four, six or more) pixel of digital picture corresponding to each location of pixels of display device.In this example, can detect (action 305) a plurality of brightness values to each location of pixels of display device.Brightness value is mapped to location of pixels (action 310) can be comprised a plurality of detected brightness values are mapped to the single location of pixels that can comprise one or more pixel or sub-pixel unit.For example, can confirm that brightness value (for example, mean value, average, weighted mean value or other) and these brightness values of expression property can be by mapping (action 310) respective pixel positions to display device according to these a plurality of brightness values.In one embodiment; When brightness value is shone upon (action 310) when arriving the location of pixels of display device; With this brightness value be designated with at illumination condition (such as highest luminance) or this location of pixels corresponding brightness value of part under (for example, 90%) lighting condition.

Method 300 also can comprise the action (action 315) of confirming the compensate mask value.In one embodiment, confirm that compensate mask value (action 315) comprises the compensate mask value of confirming to be used for the location of pixels of display device based on the brightness value of a plurality of detecting (action 305).For example, confirm (action 315) the compensate mask value can corresponding to the adjusting of the corresponding brightness value of location of pixels.In this example, can be on 0 to 1 scale given brightness value, and 0 be that minimal illumination value and 1 is the highest brightness value.Continue this example, if the brightness value of pixel position be on 0 to 1 scale 0.8, it is 0.2 that the compensate mask value that then is used for this location of pixels can be determined (action 315), promptly 1 deducts 0.8.In this example, the compensate mask value of location of pixels can be called as the anti-number of the brightness value of this location of pixels.

In one embodiment, the compensate mask value of location of pixels can be at least part confirm (action 315) based on the compensate mask value of other location of pixels of display device.For example; Can regulate the compensate mask value of a location of pixels, thereby make it in the range of tolerable variance of other compensate mask value of other location of pixels (confirming the interior location of pixels of certain location of pixels distance of the location of pixels of (action 315) compensate mask value such as the neighborhood pixels position or for it).These adjustings can be adopted the form of mean value, weighted mean value or be confirmed as the result that abandons of outlier.Therefore, the compensate mask value of location of pixels can be confirmed (action 315) under the situation of the compensate mask value of considering other location of pixels.Be understood that this can be with for example because the difference of the compensate mask value due to the barrier that a plurality of brightness values corresponding with each location of pixels is detected on the imageing sensor of (move 305) be level and smooth.

In one embodiment, can confirm a plurality of compensate mask values (action 315), and each compensate mask value is corresponding at least one location of pixels in a plurality of location of pixels.A plurality of compensate mask values can form compensate mask jointly.This compensate mask can comprise the compensate mask value corresponding with at least one location of pixels.In one embodiment, compensate mask is corresponding to the location of pixels subclass of display device, and this location of pixels subclass is less than all location of pixels of display device.In another embodiment, compensate mask can comprise the compensate mask value corresponding with all location of pixels of display device, and a compensate mask value can be corresponding to one or more location of pixels.Can for example comprise during the manufacturing of display device of liquid crystal display light valve, photoconduction and light source, after major general's photoconduction is installed in the display device, in the original place to the controller of display device afford redress mask or its compensate mask value.

At least part is regulated compensate mask or its part based on the compensate mask value of compensate mask.For example, can be confirmed as this part that another part with compensate mask differs more than threshold quantity or regulates compensate mask when exceeding range of tolerable variance in the part of compensate mask.The homogeneity difference that can be based between the compensate mask value in this example, is regulated compensate mask or indivedual compensate mask value.The compensate mask value homogeneity difference that for example, can be based on beyond the tolerance interval is regulated the compensate mask value.In this example, can regulate compensate mask to increase the illuminance uniformity of a plurality of location of pixels.Can regulate also that the compensate mask value maintains in the scope with the brightness value with a plurality of location of pixels or acceptable level under.

Method 300 mask value (action 320) that also can afford redress to the display controller of display device.In an embodiment, allow display device controller to be adjusted at least one brightness value of the pixel position of display device to the display device controller mask (action 320) that affords redress.For example, compensate mask when being employed during operation, can be adjusted in display device the illumination of pixel position with closer corresponding to the brightness value of other location of pixels of display device.In one embodiment, (action 320) a plurality of different compensate mask values can be provided to display controller, the compensate mask value is associated with the pixels with different position separately.Different compensate mask values comes the illumination difference of equipment is compensated (and some compensate mask values change illumination more than other compensate mask value) through when light is propagated through display device, changing brightness value, thus the increase illuminance uniformity of the display device that generation is for example shone to the liquid crystal display light valve applications compensate mask value of display device the time.In one embodiment, compensate mask worthwhile when being employed, have dim than the bright pixel position with more equably with luminosity than the dark pixel position so clean effect that is complementary.

In one embodiment, during the manufacturing of display device, in the original place to the display controller mask value (action 320) that affords redress.For example, can during the manufacturing of the display device that comprises liquid crystal display light valve, light source and photoconduction (for example, the marginal point light is led, wedge shaped light guide or have a planar-light guide of micro lens surface structure), (action 320) compensate mask value be provided to display controller.In this example, can after major general's photoconduction is installed in the display device, (action 320) compensate mask value be provided at the assembly process of display device to display controller.Can to display device controller (action 320) compensate mask value be provided with the form of compensate mask, and the compensate mask that comprises related compensate mask value can be stored in the memory cell of the display device that is associated with controller.In one embodiment, compensate mask is applied to light valve during can the client or the consumer uses LCD monitor.

Fig. 4 is the process flow diagram of illumination control method 400 of brightness value of describing to be used for to detect the digital picture of display device.In one embodiment, method 400 comprises the detection brightness value of describing with reference to action 305 like preceding text.The detection action of method 400 can comprise the action (action 405) with liquid crystal display light valve configuration to the precalculated position of display.For example, light valve can be configured (action 405) to fully open position, and this fully open position makes the light quantity maximization of propagating through the light valve of display device.Light valve can be configured (action 405), and to all places different with fully open position, these positions prevent that some light from passing light valve.For example, light valve can be configured (action 405) at least 95% opening, 50% open, 33% opening or position that other values between 0-100% are opened.With reference to Fig. 3 and Fig. 4; Detected brightness value when light valve is disposed at fully open position (action 405) (action 305) can be when being configured in non-fully open position (action 405) at light valve detected brightness value (action 305), this is to propagate through liquid crystal display light valve because a kind of configuration in back can prevent some light.

In one embodiment, method 400 comprises the action (action 410) of at least partly shining display device.For example, irradiation display device (action 410) can comprise the light source that activates the photoconduction that is coupled to display device, thereby makes light propagate the light valve through configuration (action 405) through display device from light source via photoconduction.In one embodiment, can for example display device be shone (action 410) to maximal value through the max cap. that light source is switched to it.Also can for example display device be shone (action 410) to the maximal value that is less than it through dimming or reducing the light that distributes from light source.This can reduce in the digital picture of display device the brightness value of any gained that detects (action 305).

In one embodiment, can be during the manufacturing of display device, (action 405) liquid crystal display light valve of the configuration in the original place and irradiation (action 410) display device.These actions also can still take place after major general's photoconduction is installed in the display device during packaging technology.

In one embodiment, the action of method 300 and method 400 takes place in the original place during the manufacturing of display device.For example, these actions can be carried out in batch assembly line or large-scale production environment and in the parts of display device remain in the assembly line environment, implement.In this exemplary example, these actions can the part as packaging technology be carried out in the assembly process of display device is online, and electronic equipment or its any parts are not removed from assembly line or manufacturing process.Display device for example can be the optical display means that comprises liquid crystal display light valve, LCD monitor, light source, photoconduction and one or more brilliance control film or polarizer.One in the embodiment of original place, during the manufacturing of display device or its parts, after being assembled into light source and photoconduction in the display device, detect (moving 305) brightness value.For example, can light source, photoconduction and the light valve of monitor be assembled into the framework that is used for televisor or computer monitor.The brightness value that detects (action 305) can comprise from the brightness value of light source via the light of photoconduction process display device propagation, and wherein light source and photoconduction are being assembled into the fixed position in the display device in (for example, edge) backlight configuration indirectly.Be understood that in this example, being incorporated into inhomogeneous illumination characteristic in the display device at the assembly process of light source and photoconduction can (action 305) to be detected and can be compensated by the compensate mask value.

In one embodiment, a kind of method that is used to make electronic equipment comprises the everything of method 300 and method 400.In this exemplary embodiment, light source can be coupled with photoconduction, and digital picture and corresponding with at least one location of pixels a plurality of brightness values (action 305) are to be detected.Detected brightness value can be by mapping (action 310) at least one location of pixels so that brightness value is associated with this location of pixels.The compensate mask value can be confirmed (action 315) based on the brightness value that is mapped to location of pixels and be provided the display controller that (action 320) given display device.

Attention is shown as individual component with the project of enumerating in Fig. 1 to Fig. 4.Yet in the actual enforcement of the system and method for here describing, they can be the inseparable parts of other electronic equipment (like digital camera).Therefore, software implementation can be at least partly used in above-mentioned action, and this software can be embodied in the goods that comprise program recorded medium.Data-signal in the present carrier wave of program recorded medium occlusion body, computer disks (disk or CD (for example, CD or DVD or the two)), nonvolatile memory, tape, system storage and the computer hard-drive.

According to preamble, a kind of effective and efficient manner making or assemble the simple and easy of indivedual electronic consoles that the environment customization has uniform illumination characteristic in batches that is used for is provided with understanding illumination control that system and method described herein provided.According to the system and method for each embodiment can be during the manufacturing of electronic display unit for example because the deformation of electronic display unit (for example, photoconduction) and material stress and be incorporated into the illuminance uniformity disturbance in the electronic display unit.This has increased efficient and performance, and has reduced cost, weight and the physical size (for example, the degree of depth) of electronic display unit.

To preceding and back a, left side and right, top and bottom or upper and lower etc. any quoting is for the ease of describing, rather than make native system and method perhaps their parts be limited to arbitrary position or dimensional orientation.

To can containing the embodiment that comprises a plurality of these elements with odd number to the embodiment of system and method or unit or quoting also of action here, and also can contain the embodiment that only comprises discrete component to any plural reference of any embodiment or unit or action here.Quoting of odd number or plural form is not to be intended to make current disclosed system or method, their parts, action or element to be limited to single or a plurality of configurations.

Any embodiment disclosed herein can with any other embodiment combination, and may not mutual exclusion and may not be intended to show to comprise at least one embodiment and combine special characteristic, structure or the characteristic described with embodiment to quoting of " embodiment ", " some embodiment ", " for selecting embodiment ", " various embodiment ", " embodiment ".Identical embodiment may not all be quoted in term as used herein.Any embodiment can use any way consistent with aspect disclosed herein and embodiment and any other embodiment combination.

Quoting of " perhaps " is appreciated that to comprising meaning, thus any project of using " perhaps " to describe can show description project single, more than one and all.

When the technical characterictic in accompanying drawing, specific descriptions or any claims attaches the drawings attached mark, comprised the readability that Reference numeral has been merely increases accompanying drawing, specific descriptions and claims.Thereby, whether there be the scope all unrestricted effect of Reference numeral to any claim key element.

Those skilled in the art will recognize that system and method described herein can be presented as other concrete form and do not break away from its spirit or essential characteristics.For example, can detect, assess tone, saturation degree, colourity, brightness or characteristic except illumination to generate compensate mask and to regulate these characteristics.Therefore previous embodiment will all be regarded as exemplary rather than to the restriction of the system and method described in all respects.Therefore the scope of system and method described herein is described by appended claims rather than preamble and is shown, and therefore is intended to contain changing in the implication that falls into claims and the equivalent scope.

Claims

1. method that is used to control the illumination of display device comprises following action:

Detect a plurality of brightness values in the digital picture of said display device, the said a plurality of brightness values in the said digital picture are corresponding to a plurality of location of pixels of said display device;

To be mapped to first location of pixels in said a plurality of location of pixels of said display device based on first brightness value of said a plurality of brightness values;

Confirm to be used for the compensate mask value of said first location of pixels based on said first brightness value, said compensate mask value is corresponding to the adjusting of the brightness value of said first location of pixels; And

To the display controller of said display device provide said compensate mask value with the brightness value that allows said display controller and regulate said first location of pixels based on said compensate mask value with closer corresponding to said a plurality of location of pixels of said display device in the brightness value that is associated of other location of pixels.

2. method according to claim 1, wherein detect action and comprise:

With the extremely predetermined opaque level of the liquid crystal display light valve configuration of said display; And

At least part is shone said display device.

3. method according to claim 1, wherein detect action and comprise:

The liquid crystal display light valve of said display is disposed to the opaque level of standard-sized sheet;

Said display device is exposed to the maximal illumination value; And

After configuration and irradiation action, obtain the said digital picture of said display device.

4. method according to claim 3, wherein the mapping action comprises:

To be mapped to second location of pixels in said a plurality of location of pixels of said display device based on second brightness value of said a plurality of brightness values.

5. method according to claim 1, confirm that wherein action comprises:

Confirm the anti-numerical value of the brightness value of said first location of pixels; And

Use said anti-numerical value as the said compensate mask value that is used for said first pixel.

6. method according to claim 1, confirm that wherein action comprises:

Identify said first location of pixels in said a plurality of location of pixels;

Identify second location of pixels in said a plurality of location of pixels, and

Relatively come to confirm said compensate mask value based on the brightness value of the brightness value of said first location of pixels and said second location of pixels.

7. method according to claim 6, confirm that wherein the action of said compensate mask value comprises:

Weighted mean value based on the brightness value of the brightness value of said first location of pixels and said second location of pixels is confirmed said compensate mask value.

8. method according to claim 1, wherein said display device comprise that light source, liquid crystal display light valve and marginal point light lead, and said method also comprises:

Lead guide said liquid crystal display light valve into from the light of said light source with said marginal point light.

9. method according to claim 1, wherein detect action and comprise:

During making said display device, liquid crystal display light valve, light source and marginal point light are led be assembled in the said display device after, detect said a plurality of brightness value in the original place.

10. method according to claim 9 wherein provides action to comprise:

During making said display device, to said display controller said compensate mask value is provided in the original place.

11. method according to claim 1 also comprises:

Confirm a plurality of compensate mask values, each compensate mask value is corresponding at least one location of pixels in said a plurality of location of pixels;

At least part generates compensate mask based on said a plurality of compensate mask values; And

To said display controller said compensate mask is provided.

12. method according to claim 11 wherein saidly provides the action of said compensate mask to comprise to said display controller:

During making said display device, to said display controller said compensate mask is provided in the original place, wherein said display device comprises liquid crystal display light valve, light source and photoconduction.

13. method according to claim 11 also comprises:

Whether the part of confirming said compensate mask differs more than the expectation quantity with respect to range of tolerable variance with other compensate mask value; And

Regulate the said part of said compensate mask.

14. method according to claim 1 also comprises:

Confirm that said compensate mask value is beyond range of tolerable variance; And

Regulate said compensate mask value.

15. method according to claim 1 also comprises:

Said compensate mask is applied to said display device reduces at least one pixel of said display device with the operating period at said display device brightness value.

16. method according to claim 1, wherein more than first brightness value comprises at least four brightness values; And wherein mapping action comprises said at least four brightness values is mapped to said first location of pixels.

17. a display manufacturing system comprises:

Sensor is configured to detect a plurality of brightness values in the digital picture of display device, and the said a plurality of brightness values in the said digital picture are corresponding to a plurality of location of pixels of said display device;

System controller is coupled to said sensor, and to receive the said a plurality of brightness values in the said digital picture, said system controller is configured to:

18. system according to claim 17, wherein said sensor is configured to during making said display device, after being assembled into light valve, light source and photoconduction in the said display device, detect said a plurality of brightness value in the original place.

19. system according to claim 18, wherein said system controller is configured to during making said display device, to said display controller said compensate mask value is provided.

20. system according to claim 17; Wherein said system controller is configured to regulate said compensate mask value generating the compensate mask value through regulating, and with said through the compensate mask value of regulating by way of compensation the part of mask offer said display device controller.

21. system according to claim 17, wherein said compensate mask value is corresponding to the anti-number of the brightness value of said first location of pixels.

22. system according to claim 17, wherein said system controller is configured to:

Identify said second location of pixels in said a plurality of location of pixels, and

At least part relatively comes to confirm said compensate mask value based on the brightness value of the brightness value of said first location of pixels and said second location of pixels.

23. a liquid crystal display comprises:

Light source;

The marginal point light is led, and is coupled to said light source optically;

The liquid crystal display light valve is coupled to said marginal point light optically and leads; And

Display device controller; Be electrically coupled to said liquid crystal display light valve; Said display device controller is configured to each location of pixels in corresponding a plurality of location of pixels of said liquid crystal display light valve and provides the corresponding compensate mask value of first location of pixels in said a plurality of location of pixels of a plurality of pixel data signals, reception and said liquid crystal display light valve, thereby and makes the brightness value of said first location of pixels closer corresponding to the brightness value of other location of pixels in said a plurality of location of pixels of said display device based on the value that said compensate mask value is regulated first pixel data signal corresponding with said first location of pixels.

24. equipment according to claim 23, wherein said display device controller is configured to:

The light valve of said display device is positioned the opaque level of standard-sized sheet position; And

Said display device is exposed to the maximal illumination value.

25. equipment according to claim 23, wherein said display device controller receive the said compensate mask value part of mask by way of compensation during being configured in the production line of said display device, make.

26. equipment according to claim 23; Wherein said display device comprises LCD monitor; Wherein said marginal point light is led with light source and is configured to shine said LCD monitor, and wherein said LCD monitor angle surface is at least 30 inches.

27. a computer-readable medium has the instruction sequence that is stored thereon, said instruction sequence comprises making processor carry out the instruction of following action:

To the display controller of said display device provide said compensate mask value with the brightness value that allows said display controller and regulate said first location of pixels with closer corresponding to said a plurality of location of pixels of said display device in the brightness value that is associated of other location of pixels.

28. computer-readable medium according to claim 27 also comprises making said processor carry out the instruction of following action:

To said display controller said compensate mask is provided.

29. computer-readable medium according to claim 27 also comprises making said processor carry out the instruction of following action:

The liquid crystal display light valve of said display is disposed to fully open position;

Said display device is exposed to the maximal illumination value; And

30. a computer-readable medium has the instruction sequence that is stored thereon, said instruction sequence comprises making processor carry out the instruction of following action:

Generation is used for a plurality of pixel data signals of each location of pixels of a plurality of location of pixels of the light valve of liquid crystal display;

Receive with said a plurality of location of pixels at least one corresponding compensate mask value of at least one location of pixels; And

Revise the value of the said pixel data signal corresponding, thereby make the brightness value of said first location of pixels closer corresponding to the brightness value of other location of pixels in a plurality of location of pixels of said display device with said at least one location of pixels of said display device.

31. computer-readable medium according to claim 30 also comprises making said processor carry out the instruction of following action:

During in the production line of said display device, making, after being assembled into said light source and said photoconduction in the said display device, receive the said compensate mask value part of mask by way of compensation.